title: Response.
authors.forename: Terry
authors.initials: T
authors.lastname: Boyle
authors.forename: Tessa
authors.initials: T
authors.lastname: Keegel
authors.forename: Fiona
authors.initials: F
authors.lastname: Bull
authors.forename: Jane
authors.initials: J
authors.lastname: Heyworth
authors.forename: Lin
authors.initials: L
authors.lastname: Fritschi
mesh_terms: D003110:Colonic Neoplasms / Q000453:epidemiology* / Q000517:prevention & control*; D005260:Female; D006801:Humans; D008297:Male; D009043:Motor Activity; D005082:Physical Exertion